- Birth date 1 July 1995
- Birth place Engelberg, Switzerland
Lena Haecki from Engelberg, Switzerland has taken part at three IBU World Championships as well as at the PyeongChang 2018 Olympic Winter Games. She had a huge breakthrough with her 4th place at the BMW IBU World Cup Östersund in season 2016/2017. Haecki has always taken the promotion of sport and biathlon to heart, spending time, inspiring and guiding the kids at her local club.